Project Number Date
test_Tails_ISO_stable 4716 13 Mar 2024, 16:06

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 9:32.683 Passed
Feature System memory erasure on shutdown
As a Tails user when I shutdown Tails I want the system memory to be free from sensitive data.
18.646
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.451
And I prepare Tails for memory erasure tests 0.438
When I start a process allocating 128 MiB of memory with a known pattern 1.167
Then patterns cover at least 128 MiB in the guest's memory 3.725

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.819
Then I find very few patterns in the guest's memory 4.043

Pattern coverage: 0.000% (0 MiB out of 952 MiB reference memory)

After features/support/hooks.rb:291 0.737
After features/support/hooks.rb:75 0.000
22.206
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.847
And I prepare Tails for memory erasure tests 0.487
And I find very few patterns in the guest's memory 4.083

Pattern coverage: 0.000% (0 MiB out of 951 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.615
Then patterns cover at least 99% of the test FS size in the guest's memory 3.734

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I umount "/mnt" 0.406
Then I find very few patterns in the guest's memory 4.029

Pattern coverage: 0.000% (0 MiB out of 951 MiB reference memory)

After features/support/hooks.rb:291 0.727
After features/support/hooks.rb:75 0.000
39.491
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.088
And I prepare Tails for memory erasure tests 0.502
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.779
Then I find very few patterns in the guest's memory 4.530

Pattern coverage: 0.000% (0 MiB out of 949 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.341
Then patterns cover at least 86% of the test FS size in the guest's memory 3.478

Pattern coverage: 99.008% (126 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.061
Then I find very few patterns in the guest's memory 3.772

Pattern coverage: 0.000% (0 MiB out of 949 MiB reference memory)

# read cache
When I mount the USB drive again 0.254
And I read the content of the test FS 0.539
Then patterns cover at least 99% of the test FS size in the guest's memory 3.531

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.617
Then I find very few patterns in the guest's memory 3.993

Pattern coverage: 0.000% (0 MiB out of 949 MiB reference memory)

After features/support/hooks.rb:291 0.785
After features/support/hooks.rb:75 0.000
1:6.242
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.932
And I prepare Tails for memory erasure tests 0.379
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.661
Then I find very few patterns in the guest's memory 3.617

Pattern coverage: 0.000% (0 MiB out of 929 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.950
Then patterns cover at least 99% of the test FS size in the guest's memory 2.858

Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.760
Then I find very few patterns in the guest's memory 3.591

Pattern coverage: 0.000% (0 MiB out of 929 MiB reference memory)

# read cache
When I mount the USB drive again 4.247
And I read the content of the test FS 0.785
Then patterns cover at least 99% of the test FS size in the guest's memory 2.952

Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.544
Then I find very few patterns in the guest's memory 3.959

Pattern coverage: 0.000% (0 MiB out of 929 MiB reference memory)

After features/support/hooks.rb:291 0.751
After features/support/hooks.rb:75 0.000
46.568
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.963
And I prepare Tails for memory erasure tests 0.454
When I fill a 128 MiB file with a known pattern on the root filesystem 12.606
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.082
Then patterns cover at least 128 MiB in the guest's memory 2.649

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I trigger shutdown 0.011
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.780

Pattern coverage: 0.000% (0 MiB out of 942 MiB reference memory)

After features/support/hooks.rb:291 3.495
After features/support/hooks.rb:75 0.000
6:19.528
Before features/support/hooks.rb:245 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:36.720
And I prepare Tails for memory erasure tests 0.431
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.171
When I trigger shutdown 0.013
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.171

Pattern coverage: 0.000% (0 MiB out of 958 MiB reference memory)

After features/support/hooks.rb:291 3.531
After features/support/hooks.rb:75 0.011